Here is a nice Tube Ring for the Tak FS102/FSQ106.
I used it on a AP Traveler with some felt shims on a Takahashi TeeGul.
I switched over to the AP Saddle on the TeeGul, so I do not need the Ring anymore.
It may need some new felt, it got a little "fluffy" when I removed the felt shims, but it is ok as is.